Core i3-540 vs Core i7-640M
Aggregate performance score
Core i7-640M outperforms Core i3-540 by a substantial 35% based on our aggregated benchmark results.
Primary details
Comparing Core i7-640M and Core i3-540 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2149 | 2367 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.11 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Core i7 | no data |
| Architecture codename | Arrandale (2010−2011) | Clarkdale (2010−2011) |
| Release date | 1 September 2010 (13 years ago) | 7 January 2010 (14 years ago) |
| Launch price (MSRP) | $346 | $45 |
| Current price | $524 (1.5x MSRP) | $29 (0.6x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-640M and Core i3-540 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 2 (Dual-core) | 2 (Dual-core) |
| Threads | 4 | 4 |
| Base clock speed | 2.8 GHz | 3.06 GHz |
| Boost clock speed | 3.46 GHz | 0.07 GHz |
| Bus support | 2500 MHz | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 256K (per core) | 256 KB (per core) |
| L3 cache | 4 MB (shared) | 4 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 81+114 mm2 | 81 mm2 |
| Maximum core temperature | 105 °C | 73 °C |
| Number of transistors | 384 million | 382 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-640M and Core i3-540 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | BGA1288,PGA988 | FCLGA1156 |
| Power consumption (TDP) | 35 Watt | 73 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-640M and Core i3-540. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.2 |
| AES-NI | + | - |
| FMA | + | no data |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | + | - |
| Hyper-Threading Technology | + | + |
| Idle States | + | + |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Demand Based Switching | no data | - |
| PAE | 36 Bit | 36 Bit |
| FDI | + | + |
| Fast Memory Access | + | no data |
| Status | Discontinued | Discontinued |
Security technologies
Core i7-640M and Core i3-540 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-640M and Core i3-540 are enumerated here.
| VT-d | + | no data |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-640M and Core i3-540. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 8 GB | 16.38 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 17.1 GB/s | 21 GB/s |
| ECC memory support | - | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Previous Generation Intel® Processors | Intel® HD Graphics for Previous Generation Intel® Processors |
| Clear Video | + | no data |
| Clear Video HD | + | + |
| Graphics max frequency | 766 MHz | no data |
Graphics interfaces
Available interfaces and connections of Core i7-640M and Core i3-540 integrated GPUs.
| Number of displays supported | 2 | 2 |
Peripherals
Specifications and connection of peripherals supported by Core i7-640M and Core i3-540.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 16 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i7-640M outperforms Core i3-540 by 35% based on our aggregated benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i7-640M outperforms Core i3-540 by 35% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Core i7-640M outperforms Core i3-540 by 3% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Core i3-540 outperforms Core i7-640M by 6% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 1.34 | 0.99 |
| Recency | 1 September 2010 | 7 January 2010 |
| Cost | $346 | $45 |
| Power consumption (TDP) | 35 Watt | 73 Watt |
The Core i7-640M is our recommended choice as it beats the Core i3-540 in performance tests.
Be aware that Core i7-640M is a notebook processor while Core i3-540 is a desktop one.
Should you still have questions on choice between Core i7-640M and Core i3-540, ask them in Comments section, and we shall answer.
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